I've been using this add-on for years and mostly it's such a time-saver & productivity boost, kudos to the developers, but! This add-on SERIOUSLY LACKS SHORTCUT KEYS! There is absolutely no way to do the simplest use-case of 1) access the tab list (then) 2. search for desired tab (then) 3. switch to one-of-the found tab(s) (done) without touching the mouse. FF's built-in search tab feature (start typing in the location bar with '% ') is now my goto mouseless-switch-tab-solution.